How To Fix /UI5/THEMING_MSGS010 - Not a valid theme id "&1". Use only up to 30 alpha-numeric characters.

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/THEMING_MSGS -

• Message number: 010

• Message text: Not a valid theme id "&1". Use only up to 30 alpha-numeric characters.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/THEMING_MSGS010 - Not a valid theme id "&1". Use only up to 30 alpha-numeric characters. ?

  The SAP error message /UI5/THEMING_MSGS010 Not a valid theme id "&1". Use only up to 30 alpha-numeric characters. typically occurs when you are trying to create or modify a theme in SAP UI5 and the theme ID you provided does not meet the required criteria. Here’s a breakdown of the cause, solution, and related information for this error:
  Cause:
  
  Invalid Characters: The theme ID you are trying to use contains invalid characters. The error message specifies that only alpha-numeric characters are allowed.
  Length Exceeded: The theme ID exceeds the maximum length of 30 characters.
  Empty or Null Value: The theme ID might be empty or null, which is not acceptable.
  Special Characters: The presence of special characters (like spaces, symbols, etc.) in the theme ID can also trigger this error.
  
  Solution:
  
  Check Theme ID: Ensure that the theme ID you are using is composed only of alpha-numeric characters (A-Z, a-z, 0-9).
  Limit Length: Make sure the theme ID does not exceed 30 characters in length.
  Remove Special Characters: If your theme ID contains any special characters or spaces, remove them and replace them with valid characters.
  Use a Valid Format: A common practice is to use a naming convention that includes a prefix or suffix to avoid conflicts and ensure uniqueness.
  Testing: After making the necessary changes, test the theme ID again to ensure that it is accepted by the system.
  
  Related Information:
  
  SAP UI5 Theming: Theming in SAP UI5 allows you to customize the look and feel of your applications. It is important to follow the naming conventions and guidelines provided by SAP.
  Documentation: Refer to the official SAP documentation for UI5 theming for more details on how to create and manage themes.
  SAP Community: If you continue to face issues, consider reaching out to the SAP Community forums for additional support and insights from other users who may have encountered similar issues.
  
  By following these guidelines, you should be able to resolve the error and successfully create or modify your theme in SAP UI5.